Results 1 to 10 of about 81,110 (304)

Poor extraction efficiencies of polystyrene nano- and microplastics from biosolids and soil. [PDF]

open access: yesPLoS ONE, 2018
Extraction and quantification of nano- and microplastics from sediments and soils is challenging. Although no standard method has been established so far, flotation is commonly used to separate plastic from mineral material.
Zhan Wang   +3 more
doaj   +4 more sources

Comparison of the Partition Efficiencies of Multiple Phenolic Compounds Contained in Propolis in Different Modes of Acetonitrile–Water-Based Homogenous Liquid–Liquid Extraction

open access: yesMolecules, 2019
Homogeneous liquid⁻liquid extraction (HLLE) has attracted considerable interest in the sample preparation of multi-analyte analysis. In this study, HLLEs of multiple phenolic compounds in propolis, a polyphenol-enriched resinous substance collected
Wenbin Chen   +5 more
doaj   +4 more sources

Rutin extraction from female Carica papaya Linn. using ultrasound and microwave-assisted extractive methods: Optimization and extraction efficiencies [PDF]

open access: yesHeliyon, 2023
Green extractive methods accompanied by resource conservation through process optimization are important in working towards sustainable processes. In the present paper, rutin was extracted from the leaf of female Carica papaya Linn using microwave ...
See Khai Chew   +3 more
doaj   +2 more sources

Relative egg extraction efficiencies of manual and automated fecal egg count methods in equines [PDF]

open access: yesHelminthologia
The World Association for the Advancement of Veterinary Parasitology recently released new recommendations for the design of fecal egg count (FEC) reduction tests for livestock.
Britton L., Ripley B., Slusarewicz P.
doaj   +2 more sources

Choline Chloride-Based Deep Eutectic Solvents for Efficient Polyphenol Extraction from White Mulberry (Morus alba) [PDF]

open access: yesMolecules
The efficiency of six deep eutectic solvents (DESs) based on choline chloride (ChCl) and various hydrogen bond donors (HBDs) was evaluated against a traditional organic solvent for extracting polyphenolic bioactive compounds from three different white ...
Kaja Gliha   +3 more
doaj   +2 more sources

Effects of baffles on heat and contaminant removal for tunnel smoke extraction: Evaluation criteria regarding removal efficiency and flow resistance

open access: yesCase Studies in Thermal Engineering, 2022
An exhaust vent with a baffle and its corresponding evaluation index are proposed in this paper to increase the heat and contaminant extraction efficiencies for stratified smoke flow in tunnel fires.
Yingli Liu, Dong Yang
doaj   +1 more source

Membrane-based microfluidic solvent extraction of Ga-68 from aqueous Zn solutions: towards an automated cyclotron production loop

open access: yesEJNMMI Radiopharmacy and Chemistry, 2023
Background The radionuclide Ga-68 is commonly used in nuclear medicine, specifically in positron emission tomography (PET). Recently, the interest in producing Ga-68 by cyclotron irradiation of [68Zn]Zn nitrate liquid targets is increasing.
Svenja Trapp   +6 more
doaj   +1 more source

Purification of natural zeolite-clinoptilolite for medical application-Extraction of lead [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
A series of experiments of the leaching of lead and other cations from three samples of natural zeolite–clinoptilolite, (Sample 1–deposit Zlatokop, Vranjska Banja, Serbia and Montenegro; Sample 2–deposit Bala Mare, Romania; Sample 3–Igros near Brus ...
MAGDALENA TOMASEVIC-CANOVIC
doaj   +3 more sources

Liquid–liquid equilibrium measurements and computational study of salt–polymer aqueous two phase system for extraction of analgesic drugs

open access: yesScientific Reports, 2022
In recent decades, aqueous two phase systems have gained a lot of attention for extraction of different materials. In this work, an aqueous two phase system was made by polyethylene glycol 600 and potassium hydroxide and phase diagram were determined for
Fariba Ghaffari   +3 more
doaj   +1 more source

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